Abstract: There is disclosed herein a 3-D visual display arrangement having a laser to produce a laser beam. This laser beam is intensity modulated either electro-optically or acoustic-optically by Z-coordinate information. The modulated laser beam is deflected electro-optically, acoustic-optically or by mechanically moved mirrors by the X and Y-coordinate control information. After deflection the laser beam is directed to a reference member supporting a plurality of particles, such as, glass spheres, which are levitated (raised from the surface of the reference member and supported and held in space above the reference member) by the laser beam to provide a real 3-D display of the X, Y and Z-coordinate information.

Abstract: A group display generator of the type wherein information appearing on the surface of a cathode ray tube is recorded on film and projected in color upon a large viewing screen. The system employs a dry type silver halide film and dry film developing process in cooperation with an image intensifier where the image appearing upon the face of the cathode ray tube is directed to the input of the image intensifier and directed from the output of the intensifier to the surface of the silver halide film in a level of surface brightness intensity equal to or greater than the illumination at the face of the cathode ray tube. The intermittent image intensifier supplies sufficient light intensification to compensate for the low image amplification inherent in the dry type silver halide film. The combination of the image intensifier and dry silver halide film allows compact and mobile group display generator application to areas heretofore inaccessible with prior art wet type film development processes and techniques.